2285485920 has 144 divisors (see below), whose sum is σ = 7965397440. Its totient is φ = 596477952.

The previous prime is 2285485901. The next prime is 2285485931. The reversal of 2285485920 is 295845822.

2285485920 is a `hidden beast` number, since 2 + 2 + 8 + 54 + 8 + 592 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50796 + ... + 84564.

It is an arithmetic number, because the mean of its divisors is an integer number (55315260).

Almost surely, 2^2285485920 is an apocalyptic number.

2285485920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2285485920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3982698720).

2285485920 is an abundant number, since it is smaller than the sum of its proper divisors (5679911520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2285485920 is a wasteful number, since it uses less digits than its factorization.

2285485920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33837 (or 33826 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 2285485920 is about 47806.7560079117. The cubic root of 2285485920 is about 1317.2236411566.

The spelling of 2285485920 in words is "two billion, two hundred eighty-five million, four hundred eighty-five thousand, nine hundred twenty".